Home / 124,220.04-186,264-91,021.20

Finding the Fourth Proportional to 124,220.04, 186,264 and 91,021.20

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Solution

The fourth proportional to 124,220.04, 186,264 and 91,021.20 is: 136,483.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,220.04 : 186,264 = 91,021.20 : x
  2. Step 2: Convert to fraction form
    124,220.04/186,264 = 91,021.20/x
  3. Step 3: Cross multiply
    124,220.04x = 186,264 × 91,021.20
  4. Step 4: Simplify right side
    124,220.04x = 16,953,972,796.80
  5. Step 5: Solve for x
    x = 16,953,972,796.80/124,220.04
  6. Step 6: Final answer
    x = 136,483.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.